【摘要】 青钢应用“转炉→小方坯连铸机→型材轧机”工艺流程试制 46S2 0易切削钢。冶炼过程采用拉碳法吹炼、硫合金化、脱氧合金化、钢包底吹氩、喂丝、全过程保护浇注、结晶器电磁搅拌等工艺 ,解决了硫合金化、铸坯角裂等问题 ;轧制工艺制订了合理的加热制度 ,解决了轧制劈裂等技术难题 ,生产出各项技术指标均符合相应标准要求的 46S2 0易切削钢更多还原

【Abstract】 Introduces the practice of producing trial-manufacture of 46S20 free-cutting steel by adopting the process flow of converter-small billet continuous casting-section mill. The catch carbon method, sulphur alloying, deoxidation technique, bottom blowing argon ladle, wire feed, protective casting in total process, electromagnetic stirring in mould are used during melting to solve problems of sulphuring and corner crack of billet, and reliable heating system is set up during rolling in order to solve rolling split, then the 46S20 free-cutting steel with every technical index coming up to its standard is produced.更多还原